Topic: No mod_mem_cache in 2.4, what gives?

[Kanashii]

Moderator edit:
Since this was getting off topic from Steffen's 2.4.0 release announcement, I split this off into it's own thread

I don't know why they remove mod_mem_cache

if you hand no hardware raid you are fucked
if you had no SSD you are fucked
etc etc

[James Blond]

I don't know how it works or if it the same, but there is mod_socache_memcache. The documentation is not complete at all in this case.

[Kanashii]

I try something like this on apache 2.2 but whose caching 2x gzip css and js files

Now i had:

RewriteCond %{HTTP:Accept-Encoding} gzip
RewriteRule .*?\.js$ $1.gjs [L]

AddType "text/javascript;charset=UTF-8" .gjs

<FilesMatch "\.gjs$">
Header set Content-Encoding gzip
SetEnv no-gzip 1
</FilesMatch>

gzip.exe -c -9 file.js > file.gjs

Maybe i try again

[James Blond]

Gzip? That is the same mod_deflate does. Do you use a subdomain for delivering js and css files?

[Kanashii]

Gzip? That is the same mod_deflate does

yep

But i make test

When user-agent is other that saved in cache then apache make again gzip. Just check mod_disc_cache directory by view in notepad cached file
.
You can check this in proces monitor.

When i use mod_mem_cache in process monitor is no request to disc


Do you use a subdomain for delivering js and css files?

no

eq
domain.com ->
reuqest to cdn.domain.com need another dns request

[James Blond]

[glsmith]

I had a look at mod_never_expire to see if it would be 2.4 compatible, nothing jumps out that I know doesn't, however it's not really "never_expire," but more mod_expire_on_21-12-2014_13:33:33_GMT.

[glsmith]

mod_socache_* are just utility modules for other modules to hook into and use. A good example is one of them must be used for mod_ssl. Another similar modules is the slotmem ones, they have no use on their own but have hooks for other modules to utilize (proxy_balancer, heartmonitor, watchdog I can think of).

The key is to make a mem_cache module that utilizes any of the socache modules, since they are all mem based anyway as far as I know.

[glsmith]

The mod_disk_cache and mod_cache part is working, so I will assume (uh oh!) mem_cache is as well.

[Kanashii]

More about pre-deflate

http://www.mrclay.org/2008/06/03/pre-encoding-vs-mod_deflate/

method requests/sec output size (bytes)
mod_deflate 187 16053
pre-encoding + type-map 470 15993

[James Blond]

I tried that pre deflating. My rewrite rules is a bit different than yours.

[James Blond]

Just found put that there is a new zlib version 1.2.6 which shall be faster as the author says ...

[Kanashii]

But should be there 2 files

file.js
file.gz

so

gzip.exe -c -9 file.js > file.gz

I had using this on my server but now is off-line and support try it repair for 4 hour

[James Blond]

[Kanashii]

Example:

/_e/s.css
/_e/s.gcss

Then run command:

gzip.exe -c -9 s.css > s.gcss

http.conf

[glsmith]

Kanashii,

Care to give a very pre-release test build of mod_cache_socache a try, this is the module that will replace mod_mem_cache, hopefully come 2.4.2. The source was posted on the dev list this afternoon.

There are modules for both x86 & x64 in the archive along with the manual page. If you care to give it a try, or anyone cares to give it a try;

NOTE: Link removed. This module is part of Apache 2.4.x since 2.4.4

[James Blond]

Does anyone know if Graham commited his patch he announced in his mail to trunk or 2.4 branch?

[Steffen]

This are the latest changes dealing with mod_cache :


Revision: 1299718
Author: jim
Date: maandag 12 maart 2012 16:45:03
Message:
Move away from DEFAULT_REL_RUNTIMEDIR and use ap_runtime_dir_relative()API
----
Modified : /httpd/httpd/trunk/modules/cache/mod_socache_dbm.c
Modified : /httpd/httpd/trunk/modules/cache/mod_socache_shmcb.c
Modified : /httpd/httpd/trunk/modules/generators/mod_cgid.c
Modified : /httpd/httpd/trunk/server/mpm/prefork/prefork.c
Modified : /httpd/httpd/trunk/server/util_mutex.c

Revision: 1209766
Author: sf
Date: zaterdag 3 december 2011 0:02:04
Message:
Add lots of unique tags to error log messages
...
...

And:


Revision: 1299718
Author: jim
Date: maandag 12 maart 2012 16:45:03
Message:
Move away from DEFAULT_REL_RUNTIMEDIR and use ap_runtime_dir_relative()
API
----
Modified : /httpd/httpd/trunk/modules/cache/mod_socache_dbm.c
Modified : /httpd/httpd/trunk/modules/cache/mod_socache_shmcb.c
Modified : /httpd/httpd/trunk/modules/generators/mod_cgid.c
Modified : /httpd/httpd/trunk/server/mpm/prefork/prefork.c
Modified : /httpd/httpd/trunk/server/util_mutex.c

[glsmith]

No, my last look there was no mod_cache_socache.c file present in trunk and it must land there first. If you want, his email is dated Feb. 21, 2012. Reply with a +1 to it.